1161696557154 has 32 divisors (see below), whose sum is σ = 2655338950656. Its totient is φ = 331909235280.

The previous prime is 1161696557141. The next prime is 1161696557171. The reversal of 1161696557154 is 4517556961611.

It is a junction number, because it is equal to n+sod(n) for n = 1161696557094 and 1161696557103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5652669 + ... + 5854575.

It is an arithmetic number, because the mean of its divisors is an integer number (82979342208).

Almost surely, 2^{1161696557154} is an apocalyptic number.

1161696557154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1161696557154 is an abundant number, since it is smaller than the sum of its proper divisors (1493642393502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161696557154 is a wasteful number, since it uses less digits than its factorization.

1161696557154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338910.

The product of its digits is 6804000, while the sum is 57.

The spelling of 1161696557154 in words is "one trillion, one hundred sixty-one billion, six hundred ninety-six million, five hundred fifty-seven thousand, one hundred fifty-four".